Unknown Serial Killers of America

Chilling confessions from a vicious slasher detail only some of his more than 100 victims.

A deranged killer stalks sex workers in Riverside, California, claiming the lives of 13 women.

Five bodies are found in Florida; the investigation stalls until two men escape the perpetrator.

Multiple unidentified bodies are found inside barrels in a New Hampshire forest.

When the bodies of 12 Black women surface in Missouri and Illinois, the killer taunts authorities.

A group of young gay men disappear in Indiana in the 1990s and an amateur detective uncovers clues.